• 2.33GHz or faster x 86-compatible processor, or Intel® Atom™ 1.6GHz or faster processor for netbooks.
  • Microsoft® Windows® XP (32-bit and 64-bit), Windows Vista® (32-bit and 64-bit), Windows 7 (32 bit and 64 bit), Windows 8.x (32 bit and 64 bit).
  • Internet Explorer 8.0 or later, latest versions of Mozilla Firefox, Google Chrome, and Opera.
  • 512MB of RAM (1GB of RAM recommended for netbooks); 128MB of graphics memory.
Mac OS
  • Intel Core™ Duo 1.83GHz or faster processor
  • Mac OS X v10.6, or later
  • Latest versions of Safari, Mozilla Firefox, Google Chrome, and Opera
  • 512MB of RAM; 128MB of graphics memory
Additional Requirements
  • Up to 500 MB free hard drive space per computer
  • Multimedia-capable computer with speakers or headphones and a monitor with minimum 1024 X 768 resolution and minimum 16-bit color
  • An up-to-date version of Adobe Flash Player on each user’s computer. Minimum system requirements are mostly determined by the version of Adobe Flash Player you have installed. To download the latest AdobeFlash Player, click here.
  • For iOS app users: iPad 2 or later (iOS 6 or above)
  • Broadband Internet connection required for subscription users including both iPad and Android app users.

Note for System Administrators: Storage needed to cache high fidelity audio. For “frozen” computers we recommend keeping the Flash cache thawed or keeping the machine thawed for the initial sessions.